Andrew j



(No Model.)

J. ENGLISH. BEGENERATIVE GAS BURNER.

Patented D60. 25, 1888.

N. PETERS, Fhola-Lilhagnpher. Washinginn. HG

lJNiTED STATES arnnr rricn.

ANDREIV J. ENGLISH, OF CINCINNATI, OI'IIO, ASSIGNOR OF ONE-HALF TOPOWVELL OROSLEY, OF SAME PLACE.

REGENERATIVE GAS-BURN ER.

SPECIFICATION forming part of Letters Patent No. 395,125, dated December25, 1888. Application filed August 26, 1887. Serial No. 247,908- (Nomodel.)

tripetally around the lower edge of a cylindrical chimney, through whichthe products of combustion are drawn upward and discharged; and itconsists in certain features of improvement designed to simplify thecost and construction and to produce a more brilliant and uniformcombustion of the gas, besides rendering the apparatus more durable inservice and facilitating the renewal of parts most exposed to injury.

Apparatus embodying my invention is exhibited in the accompanyingdrawings, in which Figure 1 is a vertical axial section of the apparatuscomplete; Fig. 2, view, detached, of the general supporting-ring,including the burner proper; Fig. 3, a perspective view of theairdeflector detached; Fig. 4., a radial cross-section of the burnerproper, showing the position and arrangement of the gas-equalizingsieves; Fig. 5, a detached view of one of the annular sieves and itsholding annulus.

Referring now to the drawings, Fig. 1, the numeral 1 designates thesupply-pipe; 2, a gas-heating chamber, which is arranged cent 'allyabove the chimney, and thus used also as a disperser of the wasteproducts of combustion; 3 3, the gas-pipes extending from theheating-chamber 2 to the supporting-ring, and serving also assuspending-rods for the latter; 4:, the supporting-ring; 5, theflame-deflector, an open cylinder of refractory material inserted in thelower end of the supportingring and projecting below the burner proper;(j, the chimney; 7, the air-deflector. These constitute the principalfeatures of the apparatus, to which are added an air-deflector, 8,(preferably of white procelain,) surrounding the chimney, and asemi-globe of glass, 9, attached below. In detail these parts areconstructed and arranged as follows:

a perspective The heating-chamber 2 is a hollow chamber, )referablyformed of cast-iron in inverted conical shape with arched sides,provided with a central orifice at the top, in which the mainsupply-pipe I makes the usual screw-connection, and about midway below,at opposite sides, with similar orifices for the attachment of thedistributing gaspipes 3 3, of which there may be two or more. The pipes3 extend downward to and engage in a similar manner with thesupporting-ring 4.. (Shown in perspective with the burner proper in"Fig. 2.) The supporting-ring 4 consists of a ring, 10, and the burnerproper, 11, joined together concentricallyby radial arms or elbows 12,and may be cast as one. For each distributingpipe connection ahalf-round enlargement, 13, is extended vertically at the outside of thering 10 from the junction of the elbow 12 to the top. A continuousaperture is formed through said enlargement and the elbow 12, extendingdownward into the annular chamber of the burner 11. The latter is anannular burner of the Argand type, provided with a circular series ofholes below for the escape of gas. As thus constructed, an annular spaceis left between the ring 10 and the burner 11. for the passage of airdownward to feed the flame at its inner side, and the elbow form of thecon-- necting-arms 12 so elevate the obstructing surfaces above theannular path of the air so passing through as to remove all obstructionto a free and perfectly uniform passage andmay be formed of cast-iron,and is provided exteriorly with a horizontal gallery, 15, which forms asupport for the porcelain deflector 8, which rests upon it above, andfor the semiglobe 9, which is suspended from it below, suitable lugsbeing provided for thumb-screw holders in the usual manner of suchconnections. The glass globe is perforated centrally below and providedwith a spherical ball, 16, acting as an air-valve, in the usual manner,to facilitate lighting.

The chimney (3 is preferably made of sheetiron and rests upon the top ofthe ring 10, (in a suitable chamber formed for the purpose,) extendingup between or around the pipes 3 to a point below the conical chamber 2,and discharging the waste products of combustion against the lower sidesof the same. This arrangement, as will be seen, deflects and dispersesthe heated gases outward, and at the same time heats the gas deliveredinto the chamber from the pipe 1. As in chimneys of this kind theinterior surfaces are liable to scale off under the influence of heat, Ifind it desirable to provide this interior surface with a refractorycoating. A preferable way to accomplish this is by covering the saidsurface with a layer, 17, of asbestus paper, which may be held by apaste of fluid silicate of soda against the metal surface of thechimney. Common paper painted over with the silicate of soda will alsoserve the purpose in a measure.

The deflector 5 is an open cylinder of soapstone, baked fire-clay, orother refractory material, formed to fit snugly within the ring 10 asfar up as the base of the chimney 6, and project below the lower marginof the burner proper, 11. It may be made thin and turned true to form.At its lower portion it is provided with a peripheral enlargement orring, 18, which stands in about the same relation to the flame withinwhich it is situated as the contracted lower edge of the deflector 7outside of the flame, and serves a corresponding purpose-to wit, todeflect the inner aircurrent descending through the annular spacebetween the ring 10 and the burner 11 outward against the flame.

The action of the outer and inner air-currents against the flame is tocause a thorough interpenetration of air to the gas molecules in theprocess of combustion and produce an intense incandescence, as the gasdischarged downward from the burner is inflamed in its centripetalcourse around the lower edge of the deflector 5. It will be noted thatthe long projection of the deflector 5 below the ring 10 secures thelatter against injuries from too intense heat.

The deflector 5 may be held in place in the ring 10 in any convenientmanner.

The burner 11, as already remarked, is an. Argand burner of the commontype with the following modifications: I construct it with a somewhatenlarged interior annular chamber, as indicated in Figs. 1 and at.\Vithin these I place one or more annular partitions,

20, of fine wire-gauze or finely-perforated sheet metal, which may beheld apart by intervening double rings 21 of sheet metal, placed edge upor secured in any other convenient manner. These partitions serve thepurpose of equalizing the flow of gas from the feed-pipes uniformly tothe dischargeorifices of the burner by retarding the flow anddistributing the gas to all parts equally. The importance of thisfunction is seen in the uniformity and equality of the flame at allpoints in the annular sheet flowing centripetally around the base of thedeflector 5.

The enlargement of the burner-chamber 11, and consequent retardation ofthe distribution of gas through the same, and its position relative tothe heated air-currents passing downward within the deflector 8 incontact with the chimney (3 and the flame-dcflector 5, practicallyconstitutes the burner 11 a supplemental gas-heating, chamber, by whichthe temperature of the gas is further raised at the point of issuing forcombustion, and the flame, also, is supplied at both sides byhighly-heated air, thereby securing perfeet and most intense combustion.

The pipe-connections 3, between the heating-chamber 2 and the ring 10,may be reduced to a single pipe arranged centrally in relation to thechamber 2, the chimney 6, and the ring 10, and connected with the latterby radial branches, all as shown by dotted lines in Fig. 1; but thearrangement first described is preferred. It should be mentioned,however, that in such first-described arrangement the pipes 3 lie incontact with the chimney, and thus sufficient heat is imparted tocompensate the loss by radiation, so that the gas suffers practically noloss of heat in passing from the chamber 2 to the burner 11.

I claim as my invention and desire to secure by Letters Patent of theUnited States In a regenerative gas-lamp, the supporting gas tube ortubes, the hollow annulus or burner-chamber provided with supportingarmsand perforated beneath with the gasoutlets, the smaller hollow annuluslocated above and concentric with the burner-chamber and connectedtherewith by hollow arms or conduits, the external air-deflector securedto supporting-arms of the burner, and the internal flame deflectorsupported from the smaller annulus, combined and arranged substantiallyas described.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

ANDREIV J. ENGLISH. [L. s]

Witnesses:

CHESTER W. MERRILL, L. M. HOSEA.

